diff -r 2f6f6f7551ca -r 32102edaa81b web/wp-admin/network/upgrade.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/wp-admin/network/upgrade.php	Mon Nov 19 18:26:13 2012 +0100
@@ -0,0 +1,92 @@
+<?php
+/**
+ * Multisite upgrade administration panel.
+ *
+ * @package WordPress
+ * @subpackage Multisite
+ * @since 3.0.0
+ */
+
+/** Load WordPress Administration Bootstrap */
+require_once( './admin.php' );
+
+if ( ! is_multisite() )
+	wp_die( __( 'Multisite support is not enabled.' ) );
+
+require_once( ABSPATH . WPINC . '/http.php' );
+
+$title = __( 'Update Network' );
+$parent_file = 'upgrade.php';
+
+get_current_screen()->add_help_tab( array(
+	'id'      => 'overview',
+	'title'   => __('Overview'),
+	'content' =>
+		'<p>' . __('Only use this screen once you have updated to a new version of WordPress through Updates/Available Updates (via the Network Administration navigation menu or the Toolbar). Clicking the Update Network button will step through each site in the network, five at a time, and make sure any database updates are applied.') . '</p>' .
+		'<p>' . __('If a version update to core has not happened, clicking this button won&#8217;t affect anything.') . '</p>' .
+		'<p>' . __('If this process fails for any reason, users logging in to their sites will force the same update.') . '</p>'
+) );
+
+get_current_screen()->set_help_sidebar(
+	'<p><strong>' . __('For more information:') . '</strong></p>' .
+	'<p>' . __('<a href="http://codex.wordpress.org/Network_Admin_Updates_Screen" target="_blank">Documentation on Update Network</a>') . '</p>' .
+	'<p>' . __('<a href="http://wordpress.org/support/" target="_blank">Support Forums</a>') . '</p>'
+);
+
+require_once('../admin-header.php');
+
+if ( ! current_user_can( 'manage_network' ) )
+	wp_die( __( 'You do not have permission to access this page.' ) );
+
+echo '<div class="wrap">';
+screen_icon('tools');
+echo '<h2>' . __( 'Update Network' ) . '</h2>';
+
+$action = isset($_GET['action']) ? $_GET['action'] : 'show';
+
+switch ( $action ) {
+	case "upgrade":
+		$n = ( isset($_GET['n']) ) ? intval($_GET['n']) : 0;
+
+		if ( $n < 5 ) {
+			global $wp_db_version;
+			update_site_option( 'wpmu_upgrade_site', $wp_db_version );
+		}
+
+		$blogs = $wpdb->get_results( "SELECT * FROM {$wpdb->blogs} WHERE site_id = '{$wpdb->siteid}' AND spam = '0' AND deleted = '0' AND archived = '0' ORDER BY registered DESC LIMIT {$n}, 5", ARRAY_A );
+		if ( empty( $blogs ) ) {
+			echo '<p>' . __( 'All done!' ) . '</p>';
+			break;
+		}
+		echo "<ul>";
+		foreach ( (array) $blogs as $details ) {
+			$siteurl = get_blog_option( $details['blog_id'], 'siteurl' );
+			echo "<li>$siteurl</li>";
+			$response = wp_remote_get( trailingslashit( $siteurl ) . "wp-admin/upgrade.php?step=upgrade_db", array( 'timeout' => 120, 'httpversion' => '1.1' ) );
+			if ( is_wp_error( $response ) )
+				wp_die( sprintf( __( 'Warning! Problem updating %1$s. Your server may not be able to connect to sites running on it. Error message: <em>%2$s</em>' ), $siteurl, $response->get_error_message() ) );
+			do_action( 'after_mu_upgrade', $response );
+			do_action( 'wpmu_upgrade_site', $details[ 'blog_id' ] );
+		}
+		echo "</ul>";
+		?><p><?php _e( 'If your browser doesn&#8217;t start loading the next page automatically, click this link:' ); ?> <a class="button" href="upgrade.php?action=upgrade&amp;n=<?php echo ($n + 5) ?>"><?php _e("Next Sites"); ?></a></p>
+		<script type='text/javascript'>
+		<!--
+		function nextpage() {
+			location.href = "upgrade.php?action=upgrade&n=<?php echo ($n + 5) ?>";
+		}
+		setTimeout( "nextpage()", 250 );
+		//-->
+		</script><?php
+	break;
+	case 'show':
+	default:
+		?><p><?php _e( 'You can update all the sites on your network through this page. It works by calling the update script of each site automatically. Hit the link below to update.' ); ?></p>
+		<p><a class="button" href="upgrade.php?action=upgrade"><?php _e("Update Network"); ?></a></p><?php
+		do_action( 'wpmu_upgrade_page' );
+	break;
+}
+?>
+</div>
+
+<?php include('../admin-footer.php'); ?>